turner



2 She'ets-:Sheet 1.

( No Model.)

T. G. TURNER. FIRE BXTINGUISHE'R.

Patented Nov. 13. 1888.

WITNE 858.'

(No Model.) I 2 8118888411881; 2.

' T. G. TURNER.

I FIRE EXTINGUISHER.

No. 892,986. fg [31288811888 Nov. 18., 1888.

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THOMAS G. TURNER,

PATENT rricsa OF NEW YORK, N. Y.

FlRE'=-EXTINGUISHER.

SPCIFICATION {orming part of Letters Patent No. 392,936, dated November 13, 1888.

Application filed August 29, 1888. Serial No. 284.097. [No model.)

To aZZ wkom it may concern:

Be it known that I, THOMAS G. TURNER, a citizen of the United States, and a resident of New York, in the county of New York and State of New York, have invented certain new and useful Improvenients in Fire-Extinguishers, of which the following is a specification.

My invention relates to that class of fire-extinguishers in which a pressure of gas (generated at the time of use) projects a chemical fluid onto the fire without the gas mingling with the fluid and acting simply as a piston to expel the fluid.

In Patent No. 381,658 of the United States, issned to nie April 24, 1888, I describe one form of construction designed for this purpose; and the invention for which I now make application for patent is i'iitended to more fully attain the object sought, which is the separation of the elastic gas, actiug as a piston, from the cheniical fluid used as the extinguishing agent. I accomplish this by the use of an elastic or tlexible bag inside the body of the extinguisher surrounding the parts or portions of the machine holding the chemicals, which, when mingled, generate the gaspress'ure, the niingling being the result of in- Verting the entii'e apparatus.

In the accompanying drawings I show two forms of the bag surrounding the vessels holding the alkali and acid ready for use.

In each of the drawings like letters denote similar parts.

A-is the main body of the extinguisher.

B is a screw for holding the cover to the opening in A in position.

ffis a bi'ace or strap to sustain the reaction o D is the cap or cover to main vessel, and in Figure 2 it is shown as extending down into the body of the extinguisher and acting a-s a stay for the upper end of inner vessel, N, containing the gas geiiei'ating ingredients and surronnded by bag T.

F F are two caps for closing the ends of tube N, which may be blown off by the expanding gases.

K is a gasket for closing the opening of vessel A under cap D.

N is an inner tube for containing the gasgenerating ingredientsin Vessels O and P, one

above the other, as shown; or two inner tubcs could be used to hold the acid and alkali, of the same size and length, and the tube need not be used.

In this application I do not wish to contine myself to any special form of inner tubes i'or containing the acid and alkali; but what I do wish to cover is the contining of the acid and alkali and the gas resulting from their mingling in suitable vessels inside of an elastic bag or cover, in which the gas will accuniulate and be held and prevented from coming into contact with the extinguishing-fluid contaiiied in the main body of the extinguisher, at the same time the gas acting as an elastic piston to force out the fluid when the vent XV is openeci.

In the drawings, Fig. 1, the elastic bag 'Il is shown as attached at its month to gasket K. In Fig. ;3 the bag is shown as tied at its inouth by a piece of string or tape. In each case the vessels containing the acid and alkali are entirely incloscd in the bag and their contents prevented from niingling with the contents of the main vessel. When the vessel is inverted, the acid and alkali are niingled and gas is liberated, the bag acting as a diaphragm between the gas and the eXtinguishing-fiuid. Upon opening the Vent W the eXtinguishing-fiuid is forced out, and the bag gradually expands under the pressure of the gas till all of the rluid will be expelled, when the bag will burst upon coming in contact with the sharp coi'ners of the vent W but not before) and the pressure be blown orf. The bag of course being destroyed, a new one is required for each charging of the machine; but, being made at small expense. this is not an objection to this style of machine.

In all machines in which the acid aiid alkali are contained in a sealed elastic bag, as shown, the vessels must be open, so that the contents of the two will mingle when the extinguisher is inverted. I have found that the fioating of some lighter liquid on the surface of the acid will act as a seal to prevent the fumes from ri'sing and setting up a false action or a premature generation of gas. I greatly prefer this plan of sealing to the use of any forin oi' non-corrosive valve-such as glass, rubber. ar lead balls-as shown iii Fig. I,

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marked S. The heavy black lines at M in Vessel 1? (lenote the position of this lighter fiuid.

Having thus deseribed my invention, what I claim as new is- 1. In a chemical fire-cxtinguisher, the combination of an enter Vessel containing firceX- tingnishing fluid, an elastic or expanding gastight bag situated within said onter vessel, and qnantities of acid and alkali normally separated one from the other within said bag and adapted to be mixed when used, all substantially as described.

2. In a chemical firc-extingnishei', the combination of an onter Vessel partially filled with fire-extinguishing fluid, an elastic or expanding gastight bag placed within said outcr Vossel and nornially only partially Snrronnded4 by the extinguishing-'luhl, and qnantities of acid and alkali normally sepvai'ated one from the other within said bag and adapted to be mixed when used, alllsnbstantially as described.

3. In a chemical fire-extingnisher, the combination of an onter vessel having` a Vent, VV,-

4. In a chemical fire'cxtinguisher, the com-l bination of an outer Vessel containing fire-extingnishing flnid, an elastie or expanding gastight bag placed Within said onter Vessel, two reeeptacles, O P, one containing an acid and the othei` an alkali, placed within said bag, and a film of oil loated upon the acid to prevent its fuining, all snbstantially as described.

Signed at New York, in the county of New York and State ofNew York, this 3lst day of July, A. D. 1888.

THOMAS G. TURNER.

`xVitnessesz ELLns OWEN, n ll. O. ll'f'EoKLEN, Jr. 

